78m6618-imr/f/p Maxim Integrated Products, Inc., 78m6618-imr/f/p Datasheet - Page 26

• Manufacturer Part Number: 78m6618-imr/f/p
• Description: Octal Power And Energy Measurement Ic
• Manufacturer: Maxim Integrated Products, Inc.

78M6618 Data Sheet
3.1.3 Recommended PCB Land Pattern for the QFN-68 Package
Notes:
1. Do not place unmasked vias in the region denoted by dimension d.
2. Soldering of bottom internal pad is not required for proper operation.
3. The y dimension has been elongated to allow for hand soldering and reworking. Production
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assembly may allow this dimension to be reduced as long as the G dimension is maintained.
Table 25: Recommended PCB Land Pattern Dimensions
Symbol
G
A
e
d
x
y
Figure 7: PCB Land Pattern for QFN 68 Package
Lead pitch
Pad width
Pad length. Nee Note 3.
See Note 1
Description
Typical Dimension
0.23 mm
6.63 mm
0.4 mm
0.8 mm
6.3 mm
7.2 mm
DS_6618_005
Rev. 1.3